493e63fee6fd8194364582a65762fdede3a7445a52d01b96d940576c8233c76c

Analysis

max time kernel
144s
max time network
155s
platform
windows11-21h2_x64
resource
win11-20240221-en
resource tags

arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
submitted
23-02-2024 11:25

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General

Target

$APPDATA/EaseUSOS2Go4.0/os2go/bin/Universal.dll.xml
Size

851B
MD5

ee45f127c55ef85ddfca0f7a0087240b
SHA1

9647dd4a6eb34ad4324c582f5108edb80228c42f
SHA256

ea9a5cf003e5cc55ab8f2aa81c38646648f4acb71fa408ace428ce0144cefaf4
SHA512

543361602177a99b32b23b7eb0e1cda79ab4d77c9f2e64ea7a1f80216f488e7461e8663fda28381bc4d337c1983eef8005951dfbd05a006afdff11d7f7f55d62

Score

1^/10

Malware Config

Signatures

Modifies Internet Explorer settings 1 TTPs 29 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3852399462-405385529-394778097-1000\Software\Microsoft\Internet Explorer\GPU\Revision = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3852399462-405385529-394778097-1000\Software\Microsoft\Internet Explorer\Protected - It is a violation of Windows Policy to modify. See aka.ms/browserpolicy\HomepagesUpgradeVersion = "1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3852399462-405385529-394778097-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\StaleCompatCache = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3852399462-405385529-394778097-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPMigrationVer = "1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3852399462-405385529-394778097-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\CVListXMLVersionLow = "395196024"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3852399462-405385529-394778097-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3852399462-405385529-394778097-1000\Software\Microsoft\Internet Explorer\GPU\SubSysId = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3852399462-405385529-394778097-1000\Software\Microsoft\Internet Explorer\VersionManager\FirstCheckForUpdateLowDateTime = "11654357"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3852399462-405385529-394778097-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3852399462-405385529-394778097-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\IECompatVersionLow = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3852399462-405385529-394778097-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\CVListXMLVersionHigh = "268435456"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3852399462-405385529-394778097-1000\Software\Microsoft\Internet Explorer\GPU\VendorId = "4318"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3852399462-405385529-394778097-1000\Software\Microsoft\Internet Explorer\VersionManager\FirstCheckForUpdateHighDateTime = "31090338"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3852399462-405385529-394778097-1000\Software\Microsoft\Internet Explorer\Main\DisableFirstRunCustomize = "1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3852399462-405385529-394778097-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3852399462-405385529-394778097-1000\Software\Microsoft\Internet Explorer\BrowserEmulation	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3852399462-405385529-394778097-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\CVListDomainAttributeSet = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3852399462-405385529-394778097-1000\Software\Microsoft\Internet Explorer\Protected - It is a violation of Windows Policy to modify. See aka.ms/browserpolicy	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3852399462-405385529-394778097-1000\Software\Microsoft\Internet Explorer\Main\OperationalData = "9"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3852399462-405385529-394778097-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\IECompatVersionHigh = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3852399462-405385529-394778097-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\IECompatVersionHigh = "268435456"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3852399462-405385529-394778097-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\IECompatVersionLow = "395196024"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3852399462-405385529-394778097-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\StaleCompatCache = "1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3852399462-405385529-394778097-1000\Software\Microsoft\Internet Explorer\Main\OperationalData = "8"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3852399462-405385529-394778097-1000\Software\Microsoft\Internet Explorer\GPU\DeviceId = "140"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3852399462-405385529-394778097-1000\Software\Microsoft\Internet Explorer\Main\OperationalData = "13"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3852399462-405385529-394778097-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3852399462-405385529-394778097-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3852399462-405385529-394778097-1000\Software\Microsoft\Internet Explorer\GPU\SoftwareFallback = "0"	iexplore.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 1468 wrote to memory of 496	1468	MSOXMLED.EXE	81
PID 1468 wrote to memory of 496	1468	MSOXMLED.EXE	81

C:\Program Files\Microsoft Office\Root\VFS\ProgramFilesCommonX64\Microsoft Shared\Office16\MSOXMLED.EXE
"C:\Program Files\Microsoft Office\Root\VFS\ProgramFilesCommonX64\Microsoft Shared\Office16\MSOXMLED.EXE" /verb open "C:\Users\Admin\AppData\Local\Temp\$APPDATA\EaseUSOS2Go4.0\os2go\bin\Universal.dll.xml"
1⤵
- Suspicious use of WriteProcessMemory
PID:1468
- C:\Program Files\Internet Explorer\iexplore.exe
  "C:\Program Files\Internet Explorer\iexplore.exe" C:\Users\Admin\AppData\Local\Temp\$APPDATA\EaseUSOS2Go4.0\os2go\bin\Universal.dll.xml
  2⤵
  - Modifies Internet Explorer settings
  PID:496

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1468-0-0x00007FFEE6F90000-0x00007FFEE6FA0000-memory.dmp

Filesize
64KB

Download
memory/1468-1-0x00007FFF26F00000-0x00007FFF27109000-memory.dmp

Filesize
2.0MB

Download
memory/1468-2-0x00007FFEE6F90000-0x00007FFEE6FA0000-memory.dmp

Filesize
64KB

Download
memory/1468-3-0x00007FFEE6F90000-0x00007FFEE6FA0000-memory.dmp

Filesize
64KB

Download
memory/1468-4-0x00007FFF26F00000-0x00007FFF27109000-memory.dmp

Filesize
2.0MB

Download
memory/1468-5-0x00007FFEE6F90000-0x00007FFEE6FA0000-memory.dmp

Filesize
64KB

Download
memory/1468-6-0x00007FFF26F00000-0x00007FFF27109000-memory.dmp

Filesize
2.0MB

Download
memory/1468-8-0x00007FFF26F00000-0x00007FFF27109000-memory.dmp

Filesize
2.0MB

Download
memory/1468-7-0x00007FFEE6F90000-0x00007FFEE6FA0000-memory.dmp

Filesize
64KB

Download
memory/1468-9-0x00007FFF26F00000-0x00007FFF27109000-memory.dmp

Filesize
2.0MB

Download
memory/1468-10-0x00007FFF26F00000-0x00007FFF27109000-memory.dmp

Filesize
2.0MB

Download
memory/1468-11-0x00007FFF26F00000-0x00007FFF27109000-memory.dmp

Filesize
2.0MB

Download
memory/1468-12-0x00007FFF26F00000-0x00007FFF27109000-memory.dmp

Filesize
2.0MB

Download
memory/1468-13-0x00007FFF26F00000-0x00007FFF27109000-memory.dmp

Filesize
2.0MB

Download
memory/1468-14-0x00007FFF26F00000-0x00007FFF27109000-memory.dmp

Filesize
2.0MB

Download
memory/1468-15-0x00007FFF26F00000-0x00007FFF27109000-memory.dmp

Filesize
2.0MB

Download
memory/1468-17-0x00007FFF255E0000-0x00007FFF2569D000-memory.dmp

Filesize
756KB

Download
memory/1468-18-0x00007FFF26F00000-0x00007FFF27109000-memory.dmp

Filesize
2.0MB

Download
memory/1468-16-0x00007FFF26F00000-0x00007FFF27109000-memory.dmp

Filesize
2.0MB

Download
memory/1468-19-0x00007FFEE6F90000-0x00007FFEE6FA0000-memory.dmp

Filesize
64KB

Download
memory/1468-22-0x00007FFEE6F90000-0x00007FFEE6FA0000-memory.dmp

Filesize
64KB

Download
memory/1468-21-0x00007FFF255E0000-0x00007FFF2569D000-memory.dmp

Filesize
756KB

Download
memory/1468-20-0x00007FFEE6F90000-0x00007FFEE6FA0000-memory.dmp

Filesize
64KB

Download
memory/1468-23-0x00007FFF255E0000-0x00007FFF2569D000-memory.dmp

Filesize
756KB

Download
memory/1468-24-0x00007FFEE6F90000-0x00007FFEE6FA0000-memory.dmp

Filesize
64KB

Download
memory/1468-25-0x00007FFF26F00000-0x00007FFF27109000-memory.dmp

Filesize
2.0MB

Download
memory/1468-26-0x00007FFF26F00000-0x00007FFF27109000-memory.dmp

Filesize
2.0MB

Download